摘要:
An information storage and retrieval system is disclosed, wherein that information storage and retrieval system comprises a storage controller, comprising one or more host adapter ports, one or more device adapter ports, a processor, and a Fibre Channel switch. The information storage and retrieval system further comprises a Fibre Channel switch controller consisting essentially of a Fibre Channel switch and a processor. The system further comprises a plurality of data storage devices, where each of those data storage devices is interconnected with the storage controller and with the Fibre Channel switch controller.
摘要:
A method is disclosed to set the signaling rate of a switch domain disposed in an information storage and retrieval system. The method establishes a switch domain target operating speed, and determines if that switch domain target operating speed comprises a first signaling rate. If the switch domain target operating speed comprises a first signaling rate, then the method asserts first Device Control Code bits to each of the plurality of data storage devices, and each of the plurality of data storage devices communicates with the switch using that first signaling rate. If the switch domain target operating speed does not comprise the first signaling rate, then the method asserts second Device Control Code bits to each of the plurality of data storage devices, and each of the plurality of data storage devices communicates with the switch using a second signaling rate.
摘要:
An apparatus, system, and method are disclosed for detecting a fibre channel miscabling event. The apparatus includes a detect module, a determine module, and an enable module. The detect module detects a fibre channel cable connection configuration, the determine module determines whether the connection configuration is valid according to preset validity requirements, and the enable module enables a valid fibre channel connection. Additionally, services for implementing such an apparatus, system, and method are disclosed. Implementation of the apparatus, system, and method beneficially reduce risk of data corruption, denial of data access, and similar data communication errors associated with miscabling events.
摘要:
An apparatus, system, and method are disclosed for fibre channel device addressing. The apparatus includes a mapping module, a receiving module, and an assigning module configured to execute the necessary steps of defining an address assignment map to associate a single logical address with a physical device, receive a request for the logical address defined for the physical device by the address assignment map, and consistently assign the logical address defined by the address assignment map to the physical device. Beneficially, the apparatus, system, and method provide for consistent and reliable fibre channel device addressing.
摘要:
A method is disclosed to set the speed of a network. The method supplies a network interconnected with a system controller and a plurality of switch domains, where each of those plurality of switch domains comprises one or more information storage devices and a switch domain controller, and sets by each of the plurality of switch domains a signaling rate for that switch domain. The method queries in-band by the system controller each of the plurality of switch domains for that switch domain's signaling rate, and provides in-band by each of the plurality of switch domains the signaling rate for that switch domain. The method provides in-band by the system controller to each of the plurality of switch domains a first speed selection command specifying a first network speed, and resets by each of the plurality of switch domains the signaling rate for that switch domain to the first network speed.
摘要:
An apparatus, system, and method are disclosed for integrating an enclosure. An initialization module initializes a second enclosure. A discovery module discovers a connection of the second enclosure to a first enclosure. An address module creates a valid address for the second enclosure. An assignment module assigns the address to the second enclosure. A power control module cycles power to the second enclosure to reinitialize the second enclosure and set the address.
摘要:
A multiple-master Inter Integrated Circuit (“I2C) bus system includes a first master device including a first processing device within a first power boundary and a second master device including a second processing device within a second power boundary connected through a single I2C bus to one or more slave devices. The second master device utilizes a software algorithm or hardware component to detect or manage power up of the first power boundary. Additionally, the second master device includes a bus control algorithm that allows it, once initiated, to communicate with the connected slave device, to direct the first power boundary to activate or detect that the first power boundary has powered up, and to release the I2C bus. Once the first processor has initialized, the first master device acquires control of the I2C bus without arbitration or interference with the second master device.
摘要:
A data processing unit including a first active cooling device configured to respond to a first control signal and a second active cooling device configured to respond to a second control signal. The control signals may be any type of control signal suitable to control the operation of the first and second active cooling devices. The data processing unit also includes a first control function selectively capable of providing the first control signal and/or the second control signal, and a second control function selectively capable of providing the first control signal and/or the second control signal. Logic associated with the first and second control functions is included to determine which of the control functions will provide which control signal at a specific time. Logic and/or switching or isolation apparatus is also included to prevent both the first and second control functions from attempting to provide one of the control signals simultaneously.
摘要:
An apparatus, system, and method are disclosed for limiting failures in redundant signals. A coordination module generates a power status signal for each of a plurality of power modules. An input module receives a source signal. A signal generation module generates a plurality of output signals from the source signal and at least one power status signal. The output signals are not asserted if at least one power supply is operational. If a device of the signal generation module malfunctions, no more than one output signal is erroneously asserted.
摘要:
Systems, methods and a computer program product are provided to permit the identification of all of the devices of a specified domain in a multi-domain environment. All communication among the domain devices is in-band having the advantage that no additional cabling is required. A control center between host devices and the domains receives an in-band command from an initiating device in a specified domain, the command being transmitted in response to the activation of a triggering device on the initiating device. Upon receipt of the command, the control center broadcasts an in-band command to each of the other devices in the domain directing the other devices to activate an indicator on each of the other devices. With the indicators on the devices in the specified domain activated, an administrator is able to identify those devices and thus focus his search for the faulty device only on those devices within the domain.